Is Boris being too soft on China?

<div>Starting 'a new Cold War on China' would be 'a mistake', Boris Johnson said today as he set out the government's integrated defence review. The military reassessment - the biggest in decades - also outlined plans to lift the UK's cap on the number of nuclear warheads from 180 to 260. Why does the review matter, and is the PM being too soft on China? Isabel Hardman speaks to James Forsyth and Katy Balls.</div>